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https://github.com/MaSzyna-EU07/maszyna.git
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109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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// what a gpu can do, and whether the renderer can run on it.
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//
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// one table of features drives three things: what is asked of the driver, what is switched on when the device is made, and
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// what a gpu is turned down for (by the name of the missing feature). the code of the renderer goes by the flags of
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// vk14::capabilities, each optional one with a way without it
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#pragma once
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#include "rendering/vulkan14/vulkan14common.h"
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namespace vk14
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{
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// the structures of the features the renderer cares about, in one object so a single pNext chain can go over them.
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// not copyable: the chain points into the object itself
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struct feature_chain
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{
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VkPhysicalDeviceFeatures2 features2{};
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VkPhysicalDeviceVulkan11Features v11{};
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VkPhysicalDeviceVulkan12Features v12{};
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VkPhysicalDeviceVulkan13Features v13{};
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VkPhysicalDeviceVulkan14Features v14{};
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feature_chain();
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feature_chain(feature_chain const &) = delete;
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feature_chain &operator=(feature_chain const &) = delete;
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// every structure with its sType and no features, linked into the chain
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void reset();
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// head of the chain, for vkGetPhysicalDeviceFeatures2 or VkDeviceCreateInfo::pNext
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VkPhysicalDeviceFeatures2 *head()
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{
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return &features2;
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}
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};
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struct feature_entry
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{
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char const *structure;
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char const *name;
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// the renderer doesn't run on a gpu without it
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bool required;
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// vulkan 1.4 requires it of every device, so a 1.4 device without it is a driver which doesn't conform
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bool guaranteed;
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// what it is for, for the log
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char const *purpose;
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VkBool32 &(*field)(feature_chain &);
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};
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std::vector<feature_entry> const &feature_table();
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struct capabilities
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{
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// identification
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std::string device_name;
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std::string driver_name;
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std::string driver_info;
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VkPhysicalDeviceType device_type{VK_PHYSICAL_DEVICE_TYPE_OTHER};
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std::uint32_t api_version{0};
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std::uint32_t driver_version{0};
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std::uint32_t vendor_id{0};
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std::uint32_t device_id{0};
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VkDeviceSize device_local_memory{0};
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float timestamp_period{0.f}; // nanoseconds per tick
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// device extensions
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bool ext_swapchain{false};
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bool ext_memory_budget{false};
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bool ext_swapchain_maintenance1{false}; // the khr one, or the ext one it came from
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bool ext_extended_dynamic_state3{false};
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// optional features, each with a way without it
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bool draw_indirect_count{false};
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bool host_image_copy{false};
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bool fill_mode_non_solid{false};
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bool pipeline_statistics_query{false};
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bool sampler_filter_minmax{false};
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bool shader_output_layer{false};
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// empty when the renderer can run on the device, otherwise one line per missing thing
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std::vector<std::string> missing;
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};
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// the features, properties and extensions of a gpu. Queried gets what the device reports; the device is made with the
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// features switched on from it
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void query_capabilities(VkPhysicalDevice Physical, feature_chain &Queried, capabilities &Caps);
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// the required features and the optional ones the device has, switched on
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void build_enabled_features(feature_chain &Queried, feature_chain &Enabled);
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// the report for the log, several lines
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std::string capability_report(capabilities const &Caps);
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// the kind of the gpu and its maker, for the log
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char const *device_type_string(VkPhysicalDeviceType Type);
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std::string vendor_string(std::uint32_t VendorId);
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} // namespace vk14
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